h5ln Link an object to another one h5ln(obj, linkname, destobj [, hard]) h5ln(obj, linkname, destname [, hard]) h5ln(obj, linkname, destfile, destname) h5ln(filename, location, linkname, destname [, hard]) h5ln(filename, location, linkname, destfile, destname) obj a H5Object linkname a string giving the link name destobj a H5Object destfile a string giving the destination filename hard a boolean filename a string giving the filename location a string giving the location in the file Create a hard, soft or external link. When destfile is given, it is always an external link. By default hard is set to false, so by default a soft link is created. Soft links can be created even if the target does not exist. h5open 5.5.0 HDF5 module introduced.